Last week, scientists positively identified the bones of Nicolaus Copernicus, the astronomer credited with scientifically formulating the idea that the universe is heliocentric and prompting the 16th century scientific revolution. To be sure that the bones were actually those of Copernicus, the scientists compared DNA from the unmarked remains found in a grave beneath Frombork Cathedral with DNA collected from the pages of one of Copernicus’ books and found them to be identical. Using computer modeling software, his face has been virtuallyreconstructed.